package com.wei.str;

/**
 * @Author :sunwei
 * @Description:
 * @Date create in 22:05  2021/4/5
 * @Modified by:
 */
public class StringTest {

    public static void main(String[] args) {
        final String s1 = "123";
        final String s2 = "45";
        String s3 = "12345";
        String s4 = s1+s2;
    }
}
